What's the most convenient way to wipe these images? (I'm just talking about
individual VM images)
I'm on Qubes 4.0, and I understand it's not that simple on SSDs, but whats the
situation?
I see that /dev/mapper has a number of links to ../dm devices, these are
encrypted, right? Where is the key stored? How is that stored on disk, and is
it likely to leave fragments all over the drive?
Can a `shred -vzn 7` be done on these devices? Does it effectively erase the
data?
I see that within /dev/mapper there's foo--private, foo--private--{0-9}+--back,
and foo--private--snap. What's the difference between these? How are they
created and used?
Am I right in thinking that only the private images hold VM specific states?
What about foo--volatile?
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